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The Silver Lake Reservoir Complex (SLRC) Bypass Project is part of LADWP’s compliance efforts to address updated State and Federal drinking water quality regulations, which require LADWP to cover treated water stored in its open reservoirs. As an alternative, the LADWP agreed to remove Silver Lake and Ivanhoe Reservoirs from service and build the Headworks Reservoir, also known as the Silver Lake Reservoir Complex (SLRC) Storage Replacement Project that is currently under construction, and the needed bypass pipeline, also known as the SLRC Bypass Project.
Project Description
The SLRC Bypass Project is part of the SLRC Storage Replacement Project. This project is intended to replace the water storage provided by the Ivanhoe and Silver Lake Reservoirs and makes possible the preservation of these two bodies of water.
The SLRC Bypass Project consists of approximately 4,600 linear feet of 66-inch diameter welded steel pipe, a regulator station, and a pressure relief station. This project currently consists of a large underground tunnel beneath West Silver Lake Drive. In an effort to minimize the construction impacts on the Silver Lake community, the LADWP is currently exploring “Option 4” as an alternative pipeline approach consisting of open trench construction along a portion of West Silver Lake Drive and along the bottom of Silver Lake Reservoir.
Current Status
Join us for an informational Community Meeting on:
Wednesday, June 19, 2013 – 7:00 p.m.
Micheltorena Elementary School Auditorium
1511 Micheltorena Street
Los Angeles, CA 90026
Additional opportunities to learn more about the project are scheduled for:
Silver Lake Neighborhood Council Meeting – July 2013, Date TBD
Micheltorena Elementary School Auditorium
1511 Micheltorena Street, Los Angeles, CA 90026
Saturday, July 20, 2013 – 9:00 a.m.
SLRC Bypass Project Walking Tour
Meet at the gate on W. Silver Lake Drive, just north of Moreno Ave.
Wear comfortable walking shoes.
Construction Schedule
Construction is estimated to begin late 2014 / early 2015.
Project Background
Two decades ago, the LADWP recognized the need to begin making changes to its open reservoir system due to emerging State and Federal water quality regulations. These regulations include two recently enacted measures, the Stage 2 Disinfectants and Disinfection By-Product Rule (S2DBPR) and Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR). In order to comply with these two regulations, the LADWP must cover or bypass each of its open reservoirs.
Open reservoirs in Los Angeles, including Silver Lake and Ivanhoe, store drinking water from the Los Angeles Aqueduct, the Metropolitan Water District, and groundwater sources. The treated water that enters the open reservoirs is exposed to contamination from the surface runoff, birds, insect, animals, and humans. Also, sunlight and elevated temperatures, especially during the summer months, contribute to the growth of algae that degrades water quality and increases taste and odor problems. These problems will be eliminated by covering or bypassing these reservoirs.
Once the Silver Lake and Ivanhoe Reservoirs are bypassed, they will no longer be used as source of potable water. Rather, they will be maintained as non-potable water bodies for the continued benefit of the community.
Contact Information
For additional project information, please contact Ms. Stephanie Spicer at (213) 367-1314 or by email at Stephanie.Spicer@ladwp.com.
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This artificial wetland at the newly rehabilitated Echo Park Lake is an example of what could happen at Silver Lake Reservoir. The Conservancy has been exploring long-term options for the Reservoir once it goes off-line (that is, no longer supplies drinking water when the Headworks underground tanks are completed) — this is one of them. The idea would be to turn the Reservoir into a regional watershed management tool, perhaps a place where recycled water could be stored for later use, or where rainwater would be kept so that it could recharge the underground aquifers under the city, rather than drain into the ocean. Wetlands are one way for water to be naturally kept and cleaned — if they don’t occur naturally, they can be recreated, like this one.
